The dino speeds have all been set from the beginning. All they have to do is make small ranges and keep the boosts within that range. The main thing for the speed boosts is to help eliminate speed ties. Not make the biggest chomper the fastest dino.

Boost should be activated by the Dino’s current level. I think it should be straight across the board. Level 21 tier 1 level 22 tier 2 etc etc. the way i see it if you have a level 30 you deserve to have the max boosts. If you are a level 21 you have to grind like top players have for a year. It levels the playing field and puts everything back where it was. It will make lower level players a little but the boosts they purchased are still there. You just have to level up